Atlanta: When you get out of the garage immediately turn to the right. You will see a glass. Crash through to find the logo.

Atlanta: Drive to the bottom of the map. Look for a building with a large globe. There is a logo that reads "Nitro Cola". A logo is located directly under it.

Atlanta: Drive to the graveyard in the south of the map (near the highway). There is a logo at the east part of the building.

Atlanta: Follow the highway until you reach a place with some construction work. Drive off the highway (to your right side if driving north), and look for a tank station. Follow the building around and you will see a ramp/road going up. Get some speed, fly over, and you will land on the roof of the building. The logo should be directly in front of you.

Atlanta: Follow the highway until you see a building with a yellow sign on top that reads "DJ Smalls". Across the road is a small parking area where you can see a sign on another building that reads "Spike". To the left of that building is a basketball court and a logo.

Atlanta: Follow the building where your garage is located. Drive through the skeleton's mouth and you will find a logo.

San Diego: Find the aircraft carrier and locate the ramp to jump onto the flight deck. Here you'll find a logo.

San Diego: There is a logo behind the baseball stadium. Follow the highway to the back of the stadium. You will then see a small ramp. Drive up to find the logo.

San Diego: There is a logo at the top deck of the hangar ship.

San Diego: Drive to the beach at the top left of the map. Follow the beach until you see a small tunnel. There you'll find the logo.

San Diego: At the lower left of the map (near the hanger ship), follow the coastline. There is no road close by. Follow the large building, and you will find a small road that leads up to a roof. Turn left and you will see the logo.

San Diego: Almost at the lower right corner at the map, there is a large parking garage. When you are on the street, drive to the bottom left corner of the building. Drive up the ramp, turn left, and drive through the window to find another logo.

San Diego: To the far left of the map at the roller coaster, drive up the ramp that is located to the north. Ride to find the logo.

Ride on 2 tires:
To ride on 2 tires, hold L1 and push the left anolog stick left or right when you are going. Then you should be on your side tires. (supplied by: cheatmaster123)

Flares, Flips & 360's
To do tricks in the air either on-bike or in-car, get air off a jump and as soon as you get air-borne press and hold L2 and L1, then move the left analog stick in the direction you want to go. (Down for Backflip, Up for Frontflip, Left or Right for Spins and Diagonals for Flares). (supplied by: N1YTR0)